How to deliver arguments to a callback function?

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Hello All,

I am relatively new user of ROS, and would be grateful if you could answer to my question. I work with Linux and C, and I want to deliver arguments to my callback function. Lets say I want to deliver to it the next struct as a parameter:

typedef struct imageManagmentStruct
{
    IplImage*  pSrcIplImage;
    IplImage*  pDstIplImage;
    GdkPixbuf* pGtkPixbuf;
    GtkWidget* pGtkImgWindow;    
    int        previousImageSize;
    int        left_attach;
    int        right_attach;
    int        top_attach;
    int        bottom_attach;    
} ImageManagmentStruct;

My callback is:

void imageCallback ( const sensor_msgs::ImageConstPtr& msg,
                     ImageManagmentStruct* pToImageManagmentStruct
                   )
{
    // My code.
}

The call to the callback from the main done like this:

ros::Subscriber subLeft = nh.subscribe ("/bb2/left/image_raw", 10, imageCallback,  
                                        pointerToImageManagmentStruct);

And this is not compiling...

Thank you all, Felix.